Just specify the time and the actions that the software will run automatically. With it you can set: Logout, restart, shutdown, suspend or hibernate. Even in English, you will not find any difficulty in installation and much less to run. Note that the application will not be releasing icon on the desktop, but it is easy to find in the Start Menu / Programs.
If you forget, you are using the program and give the application warns you quickly, and you can cancel the process immediately, otherwise it will not fail to execução.O program based solely on your Windows clock.